منابع مشابه
Looking From The Inside And From The Outside
Many times in mathematics there is a natural dichotomy between describing some object from the inside and from the outside. Imagine algebraic varieties for instance; they can be described from the outside as solution sets of polynomial equations, but one can also try to understand how it is for actual points to move around inside them, perhaps to parameterize them in some way. The concept of fo...
متن کاملOn the outside Looking in
North, discusses and illustrates stress and frustration among rural adolescents. The article is based on tapes of classroom discussion and written work produced while the author was a teacher. We live in the fourth most densely populated country in the world. For the most part we are town dwellers, thinking urban thoughts, experiencing urban feelings, constructing urban plans for the future. We...
متن کاملEpithelial cell polarity from the outside looking in.
Epithelial cell polarity may be regulated by protein sorting in the Golgi and delivery to different membrane domains, a view from the inside looking out. But from the outside looking in, cell adhesion may be required first to establish sites for delivery, retention, and separation of membrane proteins, and delivery of presorted proteins from the Golgi subsequently reinforces and maintains diffe...
متن کاملOutside looking in: nanotube transistor intracellular sensors.
Nanowire-based field-effect transistors, including devices with planar and three-dimensional configurations, are being actively explored as detectors for extra- and intracellular recording due to their small size and high sensitivities. Here we report the synthesis, fabrication, and characterization of a new needle-shaped nanoprobe based on an active silicon nanotube transistor, ANTT, that enab...
متن کاملTopological Black Holes – Outside Looking In
I describe the general mathematical construction and physical picture of topological black holes, which are black holes whose event horizons are surfaces of non-trivial topology. The construction is carried out in an arbitrary number of dimensions, and includes all known special cases which have appeared before in the literature. I describe the basic features of massive charged topological blac...
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ژورنال
عنوان ژورنال: Significance
سال: 2008
ISSN: 1740-9705
DOI: 10.1111/j.1740-9713.2008.00307.x